Denver, CO, USA

About The Project

The West 8th Ave Bridge closed in September 2021 after 92 years of use. Denver’s Department of Transportation proposed a renovation offering a second eastbound travel lane and ten-foot sidewalks making the bridge wider and safer for pedestrians.

The South Platte River Trail also received attention, with new concrete ramps allowing cyclists to travel underneath. Although the bridge was renovated once about 60 years ago, these new refurbishments will last for centuries thanks to Portland Bolt.

Portland Bolt's Contribution

This project required F1554-55 fully threaded anchors to be hot-dip galvanized, which was completed in-house. The rods were completely immersed in our 12-foot tank containing 70 tons of 840°F molten zinc. While other galvanizers leave excess zinc in the threads (preventing a nut from threading on) Portland Bolt’s high-speed spinner functions like a centrifuge to remove the excess zinc from the threads. Despite this process, employees still inspected each rod to ensure they would take nuts and avoid installation nightmares in the field.

This project also required A563-DH heavy hex coupling nuts were required. Our broad inventory of standard nuts and washers meant this contractor had only one call to make, and Portland Bolt was able to deliver.

Manufacturing Process

Portland Bolt specializes in providing fully threaded rods which are often used as anchor bolts. Our 140,000-square-foot manufacturing facility consists of the equipment required to produce fully threaded rods. We are one of only a handful of companies that not only manufactures anchor bolts but also galvanizes them within the same facility. This allows us to control both the quality and the lead time.

Do you have a project that requires galvanizing a custom-size fastener? Our estimators are on call, ready to assist at a moment’s notice.

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